12345577 has 2 divisors, whose sum is σ = 12345578. Its totient is φ = 12345576.

The previous prime is 12345569. The next prime is 12345581. The reversal of 12345577 is 77554321.

12345577 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7096896 + 5248681 = 2664^2 + 2291^2 .

It is a cyclic number.

It is not a de Polignac number, because 12345577 - 2³ = 12345569 is a prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (12345517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6172788 + 6172789.

It is an arithmetic number, because the mean of its divisors is an integer number (6172789).

Almost surely, 2^12345577 is an apocalyptic number.

It is an amenable number.

12345577 is a deficient number, since it is larger than the sum of its proper divisors (1).

12345577 is an equidigital number, since it uses as much as digits as its factorization.

12345577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29400, while the sum is 34.

The square root of 12345577 is about 3513.6273279903. The cubic root of 12345577 is about 231.1197881991.

Adding to 12345577 its reverse (77554321), we get a palindrome (89899898).

The spelling of 12345577 in words is "twelve million, three hundred forty-five thousand, five hundred seventy-seven".